1.5680 Chemical composition and Mechanical properties
|
C ≤ |
Si ≤ |
Mn ≤ |
P ≤ |
S ≤ |
Cr | Ni |
|---|---|---|---|---|---|---|
| 0.15 | 0.35 | 0.30-0.80 | 0.020 | 0.010 | 4.75-5.25 | |
| Mo | Al | Cu | Nb | Ti | V | Ce |
| ≤0.05 | ||||||
| N | Co | Pb | B | Other | ||
| Cr+Ni+Mo ≤0.50% | ||||||
German DIN of low-temperature steel GangHao and chemical composition
LenMainly used for the construction of the low temperature LNG tanks, belong to the low-temperature steel 2 | comments approval
Ensure that its quench-hardening ability structural steel grades: 20 CrMnTiH standard GB/T 5216-1985 "chemical ingredients: carbon C: 0.17 ~ 0.23 Si Si: 0.17 ~ 0.37 Mn Mn: 0.80 ~ 1.15 sulfur S: allow residual content than 0.035 P P: allow residual content than 0.035 chromium Cr: 1.00 ~ 1.35 Ni Ni: allow residual content than 0.030 copper Cu: allow residual content than 0.030 titanium Ti: 0.04 ~ 0.10" mechanical properties: hardness: annealing or high temperature tempering, than 217 HB, diameter of 4.1 mm creasing frequency "heat treatment standards and analysis of metallographic organization:" delivery status: rolling or forging system state delivery. According to buyer's request can also heat treatment (is fire, annealed or high temperature tempering) state delivery. Delivery status should be indicated in the contract.
th: We can supply any lenth based on the customer's requirement.
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Tubings: OD: φ4-410 mm, with wall thickness ranging from 1-35 mm.
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirement
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Mechanical properties
Heat treatment
Machining
Welding performance
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ELECTRODE ARC FURNACE; (NON)VACUUM INDUCTION FURNACE; LF; VD; VOD; ESR; CONSUMABLE ELECTRODE VACUUM FURNACE.
